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Attaching your own CentOS 7 yum repository to AWS SSM
From some blogs I’ve written in the past you might already know that we are using AWS SSM to patch and maintain the complete EC2 and onprem instances at one of our customers. The previous posts about...
View ArticleOracle Cloud basics for begginers
Introduction Cloud, Cloud, Cloud. Everyone is talking about the Cloud but a lot of people are still in the fog with Cloud technologies. Let’s talk about basic features of the Oracle Cloud, called OCI...
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Postgres Vision 2020 is still live
This year the Postgres Vision 2020 conference was a Free Virtual Event that took place on June 23-24, 2020 and the Postgres Vision Theme was “Postgres is for builders” Experts, IT professionals and...
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Oracle GoldenGate 19c: Cannot register Integrated EXTRACT due to ORA-44004
The global_name in an oracle database has a direct impact on the Golden Gate Extract process registration we need to do when we create an Integrated Extract. In my example below, I use Oracle...
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Oracle Autonomous Linux: cron’d ksplice and yum updates
By Franck Pachot . Oracle Enterprise Linux (OEL) is a Linux distribution which is binary compatible with Red Hat Enterprise Linux (RHEL). However, unlike RHEL, OEL is open source, free to download,...
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Oracle Data Guard RedoRoutes : What is Priority 8 ?
When dealing with cascading or far sync in a Data Guard environment, it is important to understand how to configure the RedoRoutes property. By default, a primary database sends redo to each transport...
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POUG 2020 Workshop Day 1
I had the opportunity to participate to POUG day 1 and wanted through this blog to share some of my feedback on the interesting sessions I could follow. First of all, I would like to mention the great...
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Microsoft Teams, Power Automate and Planner
As we moved to Teams at dbi and one of our customers, automating tasks was a strong need. One of the tasks that could be automated is the creation of tasks in Microsoft Planner which does not support...
View ArticleOracle ACFS: “du” vs. “df” and “acfsutil info”
By Franck Pachot . This is a demo about Oracle ACFS snapshots, and how to understand the used and free space, as displayed by “df”, when there are modifications in the base parent or the snapshot...
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Documentum Upgrade – Castor is locked!
One of the best practices while doing upgrade of Documentum is to unlock the various repository objects before starting. This will make sure that if the upgrade process requires an update of some...
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The myth of NoSQL (vs. RDBMS) “joins dont scale”
By Franck Pachot . I’ll reference Alex DeBrie article “SQL, NoSQL, and Scale: How DynamoDB scales where relational databases don’t“, especially the paragraph about “Why relational databases don’t...
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How to prepare for the SLES 15 Admin certification.
My Background Since I started at dbi services sa (before 3 Weeks), I was working and preparing for the SUSE Linux Enterprise 15 certification. I had worked with other Linux distributions like CentOS,...
View ArticleDocumentum – DARs installation fails Java 11
As you probably heard if you weren’t in an underground bunker for the past 2 years, Oracle changed the licensing of the Oracle JDK. If you want to read more about it, there is a good FAQ here. This...
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The log_duration parameter in PostgreSQL
log_duration is a useful point for finding slow running queries and to find performance issues also on the applications side using PostgreSQL as database. Another topic is finding issues with Java...
View ArticleTerraform Import from AWS
I came accross an issue by a customer using aws and terraform. He created a server with ebs volume attached to it but he deleted the volume by mistake. He then recreated it manually without using the...
View Article19c: scalable Top-N queries without further hints to the query planner
By Franck Pachot . The FETCH FIRST … ROWS ONLY syntax arrived in Oracle 12c and is much more convenient than using a subquery with ‘ORDER BY’ wrapped in a “WHERE ROWNUM < …” around it. But as I...
View ArticleDocumentum – Some things to take care of when migrating/upgrading
Over the years I have been working with Documentum, I participated in many migrations and/or upgrades. Just like everything else, this obviously builds up some experience but what if you are pretty new...
View ArticleDBPod – le podcast Bases de Données
By Franck Pachot . J’essaie quelque chose de nouveau. Je publie beaucoup en anglais (blog, articles, présentations) mais cette fois quelque chose de 100% francophone. En sortant du confinement, on...
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Create and configure an Oracle linked server in SQL Server Instance
What is Linked server ? Now a days in each company we have different applications and each one of them have different needs in term of databases support. When data exists on multiple databases the...
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A Serverless Standby Database called Oracle Autonomous Data Guard
By Franck Pachot . Announced by Larry Ellison last week, here it is: the Autonomous Data Guard. You can try it, unfortunately not on the Free Tier. First you create an Autonomous Database (ATP or ADW)...
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